Penguins on land are gregarious birds, and the video images showed that group behavior continued at sea.

These are not gregarious birds and are seldom seen in flocks.

Then a curious thing happened, which I have often seen and wondered at among gregarious birds and animals.

Like all Quiscalus grackles, it is a rather large, gregarious bird.

This is a conspicuous and gregarious bird, always seen in groups, often lined up on telephone wires.

These are gregarious birds, at times even when nesting.

This gregarious bird is also found in human settlements in suitable country.

They are highly gregarious birds when in contact with humans.

It is not a gregarious bird, found solitarily or in pairs.

It is a gregarious bird which often nests in groups with each pair defending a small territory.